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The impact of New Zealand’s 2018 methamphetamine policy on residential contamination
Muhammad Irfan, Ushan Indika Goonawardane, Craig Robertson, Michael P Cameron
First published in: 2026 Aug 14;139(1640).
Following publication of the article “The impact of New Zealand's 2018 methamphetamine policy on residential contamination”, the New Zealand Medical Journal was made aware that the published competing interest statement did not include a relevant relationship between one of the authors and Safe & Healthy Home Solutions (SHHS), the organisation that provided the data used in the study.
The competing interest statement has therefore been corrected to disclose this relationship. In accordance with the recommendations of the International Committee of Medical Journal Editors, authors should disclose relationships and activities that readers might reasonably consider relevant to the submitted work.1 Such disclosure does not in itself imply that a conflict has influenced the work; rather, it enables readers to make their own assessment. Authors are therefore encouraged to be inclusive rather than restrictive when completing competing interest declarations and, where there is uncertainty about whether a relationship is relevant, to disclose it.
The Journal considers the correction of the competing interest statement sufficient to address this disclosure issue. The correction does not alter the data, analyses or conclusions reported in the article.
Professor Frank Frizelle
Editor in Chief
New Zealand Medical Journal
1) International Committee of Medical Journal Editors. Recommendations for the Conduct, Reporting, Editing, and Publication of Scholarly Work in Medical Journals: Disclosure of Financial and Non-Financial Relationships and Activities, and Conflicts of Interest [Internet]. 2026 Jan [cited 2026 Sep 21]. Available from: https://www.icmje.org/icmje-recommendations.pdf
